[2/2] frameworks/base: Enable quick unlock

Automatically unlock the lockscreen when the correct pin/password is keyed.

Settings: https://gerrit.omnirom.org/#/c/2605/

Change-Id: I3c1df4b573321a9343d1c339055577d5ca737f14

Patchset: 4
https://gerrit.omnirom.org/#/c/2606/